Shock preventer



F. SMITH.

SHOCK PREVENTEB.

APPUCATION man FEB, 29; ms.

Patented HEEI 1 Aug.

2 s HEETS F. SMITH.

SHOCK PREVENTER.

APPLICATION HLD ms. 29. 1915.

1,196,167. Patented Aug. 29, 1916.

2 SHEETS-SHEET 2.

nueuloz 75 351 51 6mm,

FRED SMITH, 0F SPRINGDALE, UC NKEGTBJYT,

SHOCL PREVENTER.

LISPGJGV.

Application filed February 29, 1916.

1 'o (ZZZ whom it may concern:

llo it. known that I, FRED SMITH, a altizen ol' the l lllELll States, residing at Springiliile, in the county of Fairlicld and State of Fonneetit-ut, have inrenteil certain new and izsel'ul, lmpi'orenientsz in Shook-Prevent;rs, of \rhieli the following is :i specification.

My invention relatss to shock preventing llHl ilikillli lllg (lexicon for nutornobilos and other [)lllPOb My invention ()Ull'llillSCr) improved ilcvi-izes, n'lierelrv movement of one part away from its normal relation to another part; is freely periviilxteil while return of the moved part to norunil iq reliirileil. Thus in the case of an automobile, the \rln ls mayfrcely no suoml into 1], hole, or rise over a bump Wllllij the mechanism of my shock preventer acts to ll()l(l the holly substantially in the stuns plume in which it was moving before the ulnrels moreil away from the plane of their normal relation to the boily. According to my prewnt invention, these objeots el'l'euteil by means of pair of arms wilapteil lo be connected respectively to the body and elnissis or axles of ii vcliicle, lhe arms being pivotully connei-tctl ziml normally n oinlillllttl ill a desired angle. An -mgulur momlZ-tl' is seiiureil to one of tho arms, ant l :i plurality ol iiiorailile inemhers conch tlierowitl'i, these members being slitlubly mounted or guiilcil in :1 frame seemed to the other arm. These movable members are, spring-prssseil into mutant; with the angular member and hum lupereil or \veilgoslniped inner enils which normally engage tho angular member at or :iiljnoent to its angles. The result, ol' this; i-oiislruetioii i llltlli movement ol' the vulieeli toward or HWHV lioiii the holly is periiiitleil Hi l is t t!i necelerul il, 11.11 the .-'ll\-ilr trzuel mer the llltilllulilltr; if the mail, while :i prewzure tending; to maintain the lMl'lV in its former position QMHTQ l my tho pr uro of the movable memliers against, the i les i the angular member, return of the \Yllflrlci :iml boil) to thuir normal relative iwii ion rei' uiring the, outnzirtl cumming; ol? the mmuhlo mem? "s by llio unguiur lllllil-- her ngfuliir-l the spring); prebsmo of the niov" l ll iueiiihois.

in oixler that, 21 clearer usitlertumlin ij of lift invention may lie. llilll nth in is lurkew winlm! t l the iiritoivipitnying rzi 1 port of this :ippli'; tfmn :HMi

i'll'lillll tlllilOlllllltlllb llit-rei'if. 'll llie iliiinmgsg l igure i represents ii,

Specification of Letter Yutcnt;

m was,

Serial "Jr. 61,093.

at iigiproxizn \l lien llwfl'tti' fl all in ltlllti "in tli llze wiring is exteni. holly l'llllllllff to ma its former lei ei. hereafter exert n i ter-ileii of the 3) went, ol llii: pr senting; a:

in row port i oiitsi H: 1 his.

which are adapted to contact the surfaces of the angular portion 5 of the stub-shaft. Members 12 are spring-pressed into contact with the angular portion 5, members 12 preferably being provided" with axial recesses in which springs 1-1 are mounted. Abutments for the outer ends of the springs are provided, these preferably comprising screw plugs 15 threaded into the outer ends of the radial openings 11 and provided with axial openings in which the outer ends of the springs are received. The tension 'of the springs may be adjusted by screwing plugs 15 more or less into their respective openings. An oil passage 16 for the journal-bearings may be provided, covered by a screw cap 17. A cylindrical space 18 is pro vided in disk 3 about the angular portion 5 of the stubshaft, to permit the rotation of the latter relative to disk 3.

\Vhen the device is mounted in position and the arms 1 and 2 pivotally connected to the body and wheels of a vehicle, the parts are so adjusted that the rounded apiccs of the inner ends of movable members 12 engage the apices or angles of angular portion 5 of the stub-shaft. When the wheels descend into a rut, the arm 2 moves down Wardly away from arm 1, turning the angular portion 5 of the stub-shaft in a counterclockwise direction, referring to Fig. 2, so that the wedge-shaped ends of members 12 slide down the sides of portion 5 into the positions shown in Fig. This movement is accelerated by the pressure of springs 11, the inner ends of members 12 exerting a camming action against the faces of portion 5 of the stub-shaft, to accelerate its moven'ient relative to disk 3 and arm 1. \Vhcn the movement of arm 2 away from its normal position has been made, however, the engagement of the, tapered ends oi members 12 with the faces of portion 5 of the stub-shaft tends to hold arm 1 and the body of the vc hicle in its former position. and permits arm 1 to follow arm 2 only slowly. it the wheels remain on the lower level to which they have descended. in the return of thd parts o their normal angular r -lation from the po sition .shown in Fig. 2. members I! must be camnmd outwardly. against the pressure of their springs. by the movement of angular portion 5 nl tllo stnbo hal l in :1 rilochwise directionv Sii'nilarly. .whon the heels aseon'd a bump in the road. angular portion 5 ol' the lllll", lltll l. moves in a clo kwise di-- nation with the tapered inner ends l' mom bi-rs l1 engaging the i'a -i-s oi portion 7 on the (JIJl-HMilP sides of the angles fr m those. hown a. ngaged in Fig. L. the action in this i-asis Illl U bring to aid the movement of the hr -ls away from normal and to tend to pron-n! :iii abrupt rise ol' the body fol low in;,; lin' t'lit, oi' the wheels.

The to;|--l,!'ltitllhll shown n Fig. i is similar to that illustrated in Figs. 1 to 3, and ditfers only in that the body 3 is given a spider formation, the central cylindrical 7 portion 18 having cylindrical arms 19 extending therefrom through which extend radial openings 11 with movable members 12 and screw plugs 15, the same as in the form of my device previously described. In this case member 3 is provided with. a Web portion 20 between a pair of arms 19, to which the arm 1 is secured.

It should be understood that my invention is not strictly limited to the exact form of construction described, but is as broad as is indicated by the accompanying claims.

Having now described my invention, what I claim as new therein and desire to secure by Letters Patent is as follows 1 1. In a shock preventcr, the combination of a pair of arms, a body to which one arm is secured, a stub-shaft extending through the body and journaled therein, the second arm being secured to said stub-shaft, said stub-shaft having an angular portion, and spring-pressed members mounted radially in said body with tapered inner ends contacting surfaces of said angular portion, said members being adapted to normally contact said angular portion approximately at the angles thereof, when said shock preventer is in operation, substantially asset forth.

2. In a shock preventer, the combination of a pair of arms, pivotally connected at their inner ends, an angular member axially arranged with respect to said arms, secured to one of the same, abutments and guiding means secured to the other arm, movable members in said guiding means contacting said angular member, and spring n :ans engaging said abutments and pressing said members into contact with said angular member, said members being adapted nor mally to contact said angular member approximately at the angles thereof, substantially as set forth.

3. in a shock prevcnter, the combination of a pair of arms, pivotally connected at their inner ends, a member having wedge surfaces secured to one oi said arms to os' rillalo therewith, movable members having wcdgoshapod ends contacting said first member adjacent the high points thereof, guiding means for said last named mem bors carried by the other ol said arr spring means pressing v aid lastummed nn-mbrrs into conta t with said lirrt momlit'l', said arms being adapted to be secured to the body and \vhrols 1d a \chir-le, substantially as set forth.

i. In a. shock prewntrr, the combination ol :1 pair of arms, adapted to be Ullilit'll'l l in parts having a normal relation and ruin live motion in opposite dirortion l'rom the same, a pimlal iri'mnrrliou betw en the .members being arranged to retard return of said arms to normal relation after relative movement therefrom inv either direction, substantially as set forth.

5. In a shock preventer, the combination of a pair of arms, a body to which one arm is secured, a stub-shaft extending through the body and having cylindrical portions on which the body is journaled, and an angular portion, the second arm having portions secured to said shaft on both sides of the body, said body having guides and shaft, one adjacent to each angle of the augular portion, and springs between said abutments and members for pressing said members into contact with said angular portion, substantially as set forth.

6. In a shock preventer, .the combination of a shaft having an angular portion, an arm journaled on said shaft, a second arm secured to-ssid shaft, and extending at an angle to the first arm, a radially movable member having a wedge-shaped inner end adapted to contact the surfaces ofthe angu lar portion of the shaft on both sides of an angle thereon, carried by the first arm, and resilient means holding said movable member in contact with said angular portion, substantially as set forth.

This specification signed and witnessed this 26th day of February, 1916,

I FRED SMITH. Witnesses:

BERTHA B. LORD, F. H. GREEN. 

